Setting toggle group on instantiated toggles

So I am making an inventory system, my current method involves toggles which will be instantiated as children of the toggle group. My question is how can I set the group of an instantiated toggle in a script?

Current script:

Code (CSharp):

1. public GameObject slot;
2. public int gap = 2;
3. public int quantity = 2;
4. RectTransform slotTransform;
5.  
6. void updateDisplay () {
7.         for (int i=1; i<=quantity; i++) {
8.             slotTransform = slot.GetComponent<RectTransform>();
9.             slotTransform.localPosition = new Vector3(0,-(i-1)*(2+slotTransform.sizeDelta.y));
10.             Instantiate (slot).transform.SetParent (transform,false);
11.         }
12.     }

 

Tried this and it initially failed. I then realised that I never added UnityEngine.UI to the uses clause.
Thanks for the help anyway!